Abstract:
In recent years, the rapidly growth of CMOS technology has evolved towards submicron and deep-submicron features. Due to smaller device sizes, and significant demand for low-power designs, the maximum allowable power supply voltage is restricted. So far, two solutions; clock boosting and switched opamp schemes have been proposed. The material presented in this thesis shows the drawback of these schemes while presenting three new methods for realizing low-voltage switched-capacitor integrators which are the key stages of Δ∑ modulators and SC filters.
Using these integrators, several circuit realizations of SC filters and second order Δ∑ modulators will be shown.
